Q173 / 180 · NEET 2020 (Phase 2) · Zoology

First discovered restriction endonuclease that always cuts DNA molecule at a particular point by recognising a specific sequence of six base pairs is:

  • A
    EcoRI
  • B
    Adenosine deaminase
  • C
    Thermostable DNA polymerase
  • Correct answer
    D
    HindII

Solution

The first restriction endonuclease HindII always cuts DNA molecule at a particular point by recognising a specific sequence of six base pairs. This specific base sequence is known as the recognition sequence for HindII.

Hence, the correct answer is option: 'D'.

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